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Table 1 The physico-chemical properties and heavy metal contents of the soils

From: Genetic diversity and characterization of arsenic-resistant endophytic bacteria isolated from Pteris vittata, an arsenic hyperaccumulator

Sampling site

pH

WC (%)

TN (g kg− 1)

SOC (%)

Cu (mg kg−1)

Cd (mg kg− 1)

Zn (mg kg− 1)

Pb (mg kg− 1)

As (mg kg− 1)

S1

7.55 ± 0.07c

6.26 ± 0.43a

0.25 ± 0.03a

4.76 ± 0.26a

0.12 ± 0.01c

0.07 ± 0.01e

53.4 ± 3.35d

15.6 ± 1.12e

5.36 ± 0.87c

S2

7.78 ± 0.02a

2.32 ± 0.62c

0.12 ± 0.02b

4.37 ± 0.08a

0.88 ± 0.05b

5.15 ± 0.52b

245.7 ± 2.97c

411.3 ± 10.3b

21.3 ± 1.23a

S3

7.71 ± 0.04b

2.88 ± 0.28c

0.10 ± 0.02b

4.23 ± 0.55a

3.40 ± 0.35a

7.99 ± 0.08a

790.4 ± 7.22a

882.5 ± 78.5a

24.5 ± 1.13a

S4

7.63 ± 0.03ab

4.73 ± 0.47b

0.11 ± 0.01b

4.10 ± 0.51a

0.53 ± 0.15b

1.12 ± 0.57d

367.9 ± 6.52b

258.2 ± 33.0c

10.8 ± 2.01b

S5

7.78 ± 0.02a

4.15 ± 0.55b

0.09 ± 0.01b

3.65 ± 0.06a

0.72 ± 0.16b

2.34 ± 0.18c

333.2 ± 45.3b

177.6 ± 15.3d

12.3 ± 0.85b

  1. Data are mean ± SE (n = 3); different letters in the same column indicate statistically significant differences (SNK test, P < 0.05). WC soil gravimetric water content; TN total nitrogen, SOC soil organic carbon